BattCave JOK3R+ GRP Competition Mini Racer Kit

Since the original JOK3R launched in late 2023 and then the 2025 JOK3R-R update, we have continued to develop and refine the platform through countless hours of racing, testing and customer feedback.

JOK3R+ GRP

The familiar 3mm Black GRP chassis retains all the characteristics of the JOK3R-R, now combined with all the latest JOK3R+ design updates, improved materials and manufacturing processes.

A race-proven and versatile chassis option for a wide range of track conditions.

What's New with the JOK3R+

New Short A-Arms & Ride Height Shims

New short A-arm design 

Developed to improve driveability and provide another front-end tuning option, together with new ride height shims for adjustment of the front ride height.

*The existing JOK3R-R Long A-Arms remain fully compatible with the JOK3R+.

2mm Long Top Decks - Now Standard

Previously available as an optional tuning part for the JOK3R-R, our 2mm Long Top Deck design is now supplied as standard across all JOK3R+ kits, providing additional flex tuning options straight from the box.

New JOK3R+ V2 Pod Bobbins

Revised rear pod bobbins introduced with the JOK3R+, These new pod bobbins are not only stronger but they are designed to provide uniform preload which is set by the band itself. This allows racers to adjust the pod roll centres without affecting the sideband’s preload.

Revised TPU Front Bumper

The TPU front bumper has been redesigned to accommodate the new Short A-Arm design while remaining fully compatible with the original JOK3R-R Long A-Arms.

Revised Steering Bump Stop

The updated TPU steering protection are now universal fit for both side of the car.

Aqua Response Side Bands

The ever popular Aqua Silicone Response Side Bands are now supplied as standard with the JOK3R+.

Improved Plastics throughout

General improvements to materials and manufacturing process to further increase the durability the car.

Now Available as a Full Kit

For the first time in the history of the JOK3R platform, the JOK3R+ is now available as a full self-build kit, complete with our comprehensive hard copy user manual. *For those who would prefer their car ready-built, a pre-assembled slider option will also be available, subject to availability.

New JOK3R+ Tuning Options Available Separately.

• 2mm T7075 Alloy Pod Plate - significantly increases the pod movement compared with the standard 3mm pod plate, providing greater pod freedom for improved weight transfer and bump handling when cornering at speed.

• Low Roll Centre Pivot Ball - lowers the rear roll center for increased rear grip and traction, allowing additional rear-end find tuning options.

• Fat Side Bands - a new trio of 2.5mm side-band range providing a simplified chassis tuning option. Available in Soft, Medium and Hard, colour coded to match our current Side Band range.

JOK3R+ Global  specification

• Mini Construction Rules compliant

• Fully precision ball-raced

• 5mm Big Bore Kingpins

• High/Low rear axle height selection

• Forward/Backward battery positions

• Fully adjustable front and rear preload and droop

• New Short A-Arms

• New front ride height shims

• 100% compatible with JOK3R-R Long A-Arms

• 2mm Long Top Decks supplied as standard

• New JOK3R+ V2 Pod Bobbins

• Aqua Silicone Side Bands

• Large and small servo posts supplied

• LCG motor mount

• Quick-change front and rear spring design

• Revised universal steering bump stop

• Revised TPU front bumper

• ZED - Zero E-clip Design

Premium Equipment Included as Standard

Every JOK3R+ also includes:

• Black anodised alloy motor plate

• Black alloy spur drive

• Black alloy dog drive

• Hex king pins and spanner

• Black Kimbrough KP114 Servo Saver (25T)

• 3D printed ride-height gauge

• 3D printed parts tray

• Bonus spare-parts bag

Compatibility & Upgrade Path

The JOK3R+ remains firmly part of the existing JOK3R platform rather than replacing it with an entirely new car. Most JOK3R-R parts remain compatible with the JOK3R+, allowing existing racers to continue using their current spares and optional parts while taking advantage of the latest JOK3R+ developments.

What You Need to Run;

• RS-540 type motor

• Speed controller

• Servo

• Battery and charger

• Radio control set

• Body shell

• Wheels and tyres

*Please check your local club or championship regulations for permitted electronics, bodies and tyres.

Resources & Support

The JOK3R+ is supplied with a comprehensive hard-copy user manual covering assembly, setup and adjustment. A digital copy is also available from the Downloads section of our website, allowing you to view the manual on your phone, tablet or computer.

With the vast majority of JOK3R components designed and manufactured by BattCave, we remain committed to full spares support, continued development and future tuning options for the platform.

JOK3R+  The next evolution of the BattCave JOK3R platform.